v2.0: state enforcement, project scoping, harness integration

State Enforcement (v2.0):
- .state file as single source of truth for task phase
- Approval gates for research, decomposition, design, test_design
- status.py --transition refuses illegal phase transitions
- status.py --validate-folder detects out-of-order artifacts
- status.py --audit checks all tasks for violations
- status.py --create-task is the only valid way to create tasks
- Pre-v2.0 tasks without .state are UNTRACKED -- all commands refuse them
- New --upgrade command bootstraps .state files for existing tasks

Project Scoping:
- --project flag added to all status.py commands across 16+ files
- _find_project_dir errors instead of silently falling back to ~/.automaton/
- --scope-check marks framework files OUT_OF_SCOPE when working on a project
- Dashboard handlers use stored project_root instead of re-detecting from CWD
- Prompts reference ~/.automaton/scripts/vram_detect.py (not {project}/.automaton/)

Harness Integration:
- status.py --can-edit now supports project-level checks (no --task required)
- --can-edit --file checks file scope without --task
- --json output for machine-readable harness integration
- opencode plugin (plugins/automaton-guard/plugin.ts) intercepts edit/write
- Git pre-commit hook (scripts/git-hooks/pre-commit) blocks commits without task
- Formal integration contract (contracts/harness-integration.md)

Other:
- upgrade.sh delegates to status.py --upgrade instead of manual heuristics
- Phase prompts reference --project {project} for multi-project scoping
- 200 tests passing (14 new)

tasks/harden-dashboard-security/IMPLEMENTATION.md

@@ -0,0 +1,22 @@
+# Implementation: Harden Dashboard Security
+
+## Summary
+- Added CORS headers (`Access-Control-Allow-Origin`, `Methods`, `Headers`) to all API responses via `_send_json()` and `_send_error()`
+- Added `do_OPTIONS` handler for CORS preflight requests
+- Added `X-Content-Type-Options: nosniff` header to all responses
+- Added `MAX_POST_BODY = 65536` (64KB) content-length limit on POST review endpoint
+- Added `MAX_REVIEW_COMMENT_LENGTH = 4096` character limit on review comments
+- Replaced inline `onclick` handlers in review buttons with `data-task`/`data-status` attributes + event delegation
+- Applied `escapeHtml()` to `task.display_name` in `renderTaskCard()`
+- Filesystem task name validation was already implemented in `fix-verdict-parsing` (R2 of this SPEC is done)
+
+## Changes
+- `automaton/dashboard/ui/app.py`: Added CORS headers, `do_OPTIONS`, content-length bounds, comment truncation
+- `automaton/dashboard/html/dashboard.js`: Replaced onclick handlers with data attributes, escaped display_name
+
+## Test Results
+119 passed in 0.08s (full suite)
+Dashboard starts and serves correct CORS headers on all API responses
+
+## Blockers
+None